Shortage of food can cause ______________.

Chewing tobacco can cause __________________________.

Which of the following  body fluid spread communicable disease ?

Malaria causing organisms particularly effect which part of a person body ?

Which of the following disease affect Intestine in human body ?

Bad odour associated with dirty clothes and unwashed body are caused by ________________________ acting on perspiration.

Which of the following are correct :

(a) Different type of bacterial diseases are cholera, diptheria, whooping cough, meningitis, tetnus, gonorrhea ans syphilis etc.

(b) Microorganisms that cause common cold, tuberculosis, pneumonia, etc., spread through the air we breathe.

Gonorrhoea is caused by ______________________.

Ringworm can be prevented by _____________________.

Who discovered small pox vaccine?